I believe I have the same / a similar issue that appeared after upgrading Elementor to version 3.26.0. It doesn’t generate errors on the front-end but a loading issue on the Elementor edition screen prevents all modification.
Here’s a copy of the stack trace in case :
Fatal error: Uncaught Error: Class “Elementor\Core\Schemes\Typography” not found in /wp-content/plugins/seo-by-rank-math-pro/includes/3rdparty/elementor/class-widget-breadcrumbs.php:149
Stack trace: #0 /wp-content/plugins/elementor/includes/base/controls-stack.php(2386): RankMathPro\Elementor\Widget_Breadcrumbs->register_controls()
#1 /wp-content/plugins/elementor/includes/base/widget-base.php(1050): Elementor\Controls_Stack->init_controls()
#2 /wp-content/plugins/elementor/includes/base/controls-stack.php(569): Elementor\Widget_Base->init_controls()
#3 /wp-content/plugins/elementor/includes/base/widget-base.php(184): Elementor\Controls_Stack->get_stack()
#4 /wp-content/plugins/elementor/includes/managers/widgets.php(391): Elementor\Widget_Base->get_stack(false) #5 [internal function]: Elementor\Widgets_Manager->ajax_get_widget_types_controls_config(Array, Object(Elementor\Core\Common\Modules\Ajax\Module))
#6 /wp-content/plugins/elementor/core/common/modules/ajax/module.php(176): call_user_func(Array, Array, Object(Elementor\Core\Common\Modules\Ajax\Module))
#7 /wp-includes/class-wp-hook.php(324): Elementor\Core\Common\Modules\Ajax\Module->handle_ajax_request(”)
#8 /wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(”, Array)
#9 /wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#10 /wp-admin/admin-ajax.php(192): do_action(‘wp_ajax_element…’)
#11 {main} thrown in /wp-content/plugins/seo-by-rank-math-pro/includes/3rdparty/elementor/class-widget-breadcrumbs.php on line 149